<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        
        body {
            background-color: skyblue;
        }
        
        div {
            width: 200px;
            height: 400px;
            background-color: #fff;
            border-left: 200px solid #000;
            margin: 100px auto;
            border-radius: 50%;
            transition: all 0.5s linear;
        }
        
        div:before,
        div:after {
            content: "";
            display: block;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            margin-left: -100px;
        }
        
        div::before {
            background-color: #fff;
            border: 75px solid #000;
        }
        
        div::after {
            background-color: #000;
            border: 75px solid #fff;
        }
        
        div:hover {
            transform: rotate(360deg);
            -webkit-transform: rotate(360deg);
            -moz-transform: rotate(360deg);
            -o-transform: rotate(360deg);
            -ms-transform: rotate(360deg);
        }
    </style>
</head>

<body>
    <div></div>
</body>

</html>